package utils

import (
  "os"
  "path/filepath"
  "reflect"
  "strings"
)

//@author: [songzhibin97](https://github.com/songzhibin97)
//@function: FileMove
//@description: 文件移动供外部调用
//@param: src string, dst string(src: 源位置,绝对路径or相对路径, dst: 目标位置,绝对路径or相对路径,必须为文件夹)
//@return: err error

func FileMove(src string, dst string) (err error) {
  if dst == "" {
    return nil
  }
  src, err = filepath.Abs(src)
  if err != nil {
    return err
  }
  dst, err = filepath.Abs(dst)
  if err != nil {
    return err
  }
  var revoke = false
  dir := filepath.Dir(dst)
Redirect:
  _, err = os.Stat(dir)
  if err != nil {
    err = os.MkdirAll(dir, 0755)
    if err != nil {
      return err
    }
    if !revoke {
      revoke = true
      goto Redirect
    }
  }
  return os.Rename(src, dst)
}

func DeLFile(filePath string) error {
  return os.RemoveAll(filePath)
}

//@author: [songzhibin97](https://github.com/songzhibin97)
//@function: TrimSpace
//@description: 去除结构体空格
//@param: target interface (target: 目标结构体,传入必须是指针类型)
//@return: null

func TrimSpace(target interface{}) {
  t := reflect.TypeOf(target)
  if t.Kind() != reflect.Ptr {
    return
  }
  t = t.Elem()
  v := reflect.ValueOf(target).Elem()
  for i := 0; i < t.NumField(); i++ {
    switch v.Field(i).Kind() {
    case reflect.String:
      v.Field(i).SetString(strings.TrimSpace(v.Field(i).String()))
    }
  }
  return
}
